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81216 - NTN

81216

Needle roller bearing, thrust cylindrical roller bearing, 812 series

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Technical datasheet

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Specs

PRODUCT DEFINITION

d - Bore diameter of support washer IR - WS 80 mm
D - Outside diameter of support washer OR - GS 115 mm
d1 - External diameter of support washer IR - WS 115 mm
D1 - Bore diameter bearing washer OR - GS 85 mm
T - Thrust bearing height 28 mm
Dc1 - Roller cage bore diameter 80 mm
Dc - Roller cage outer diameter 115 mm
rs - Min fillet radius 1 mm
Cage assembly reference K81216
Bearing ring (inner ring) WS WS81216
Bearing ring (outer ring) GS GS81216
Ea - Rollers reference outer diameter 108,4 mm
Eb - Rollers reference inner diameter 84,8 mm
Mass 0,95 kg
Cage assembly mass 0,25 kg
Bearing ring (inner ring) WS mass 0,35 kg
Bearing ring (outer ring) GS mass 0,35 kg
Precision class P0
Brand NTN
Product classification image

PRODUCT PERFORMANCE

Ca - Dynamic axial load rating 143 kN
C0a - Static axial load rating 460 kN
Cua - Limit axial load rating 56 kN
Nlim - Grease lubrication limit speed 630 tr/min
Nlim - Oil lubrication limit speed 2500 tr/min
Tmin - Min operating temperature -20 °C
Tmax - Max operating temperature 120 °C

ABUTMENT

da min - Min shoulder diameter IR 106 mm
Db max - Max OR shoulder diameter 86 mm
ras max - Max shaft & housing fillet radius 1 mm